|
|
Post by palmsprings on Feb 6, 2016 23:41:21 GMT -5
My montero sport has a 3.0 interference engine in it.Can Mitsubiti's
3.0 sohc 12 valve non interference engine be used instead ?
At 230K mi Im lining stuff up now.
Another issue I might run into could be passing kaliforicstan's tough smog emission parameters due to it not being the same as the original engine for it.Anyone know?
3.0L SOHC 12 Valve Engine Non-Interference
|
|
|
|
Post by ES_97Sport on Feb 8, 2016 16:25:20 GMT -5
My montero sport has a 3.0 interference engine in it.Can Mitsubiti's 3.0 sohc 12 valve non interference engine be used instead ? At 230K mi Im lining stuff up now. Another issue I might run into could be passing kaliforicstan's tough smog emission parameters due to it not being the same as the original engine for it.Anyone know? 3.0L SOHC 12 Valve Engine Non-Interference Both the 3.0L (both SOHC and DOHC) and the 3.5L are interference engines. I don't believe that anything recent from Mitsu isn't an interference engine. If you're going to replace a Sport engine, you need an engine from another Sport. This is the simplest way to do an engine replacement. There are a LOT of 3.0L Mitsubishi engines out there. The 3.0L was used in everything from cars to minivans to SUVs by several different manufacturers in both front wheel drive and rear wheel drive configurations. While technically a 3.0L Mitsubishi is a 3.0L Mitsubishi internally, externally accessory mounting bosses changed as well as did engine mount bosses and the engine mount configurations (motor mounts) themselves. The intake manifold changed as well between engines and manufacturers so important things like cooling, sensors and cables will not mount up. Between years things also changed even with the same engine, on the same model vehicle. You can not buy a 2002 Montero Sport 3.0L and drop it into a 1998 3.0L Montero Sport without doing fabrication. Or the other way around.  There are two basic 3.0L engines. The 2 bolt main cap and the 4 bolt main cap engines. The latter came predominately on the turbo car engines. This isn't really relevant in this case. What IS relevant is that various cam profiles were used in the different versions of the 3.0L engine. Unless you plan on changing cams, under NO circumstances EVER do you want to use a car 3.0L in an SUV. Attempting to do this will cause HUGE driveability problems. Based on my knowledge of the Sport electronics and programming, I can almost guarantee it'll never pass CA emissions. As I understand CA emissions rules, the engine has to be replaced with one of the same year and displacement as well as from the same model vehicle. My recommendation would be 1st to rebuild what you have. This will be the easiest and have the least chance of running afoul of CA regulations. If you HAVE to replace the engine, get one from the same year Montero Sport and make sure its a CAL engine if applicable. The last I heard was that you can NOT replace a CAL vehicle engine with a FED vehicle engine. I also seem to remember that if you replace the engine in CA you have to have the vehicle inspected and re-certified. Forget any ideas of 'they just won't know'. I've heard some stories of guys that thought they'd get away with it and then got caught. They didn't end well.  Edward |
|
|
|
Post by bdmontero on Feb 9, 2016 9:12:36 GMT -5
I know when mine goes I'm boring it and adding some different odds and ends.
Sent from my SM-N900V using proboards
|
|
|
|
Post by palmsprings on Feb 9, 2016 10:14:05 GMT -5
Thanks Edward I had even considered used wrecking yard ,in various states,engines with less than 100K miles claimed on them,but I couldnt be very confident in the real condition or mileage so I backed out. The smog rules here n cali eliminates my choices. Im supprised that issue isnt readily available or even required to be posted by the junkyards selling these engines to cali. I should have originally thought to check with the state on this issue. Thx again =============================================== As I understand CA emissions rules, the engine has to be replaced with one of the same year and displacement as well as from the same model vehicle. My recommendation would be 1st to rebuild what you have. This will be the easiest and have the least chance of running afoul of CA regulations. If you HAVE to replace the engine, get one from the same year Montero Sport and make sure its a CAL engine if applicable. The last I heard was that you can NOT replace a CAL vehicle engine with a FED vehicle engine. I also seem to remember that if you replace the engine in CA you have to have the vehicle inspected and re-certified. Forget any ideas of 'they just won't know'. I've heard some stories of guys that thought they'd get away with it and then got caught. They didn't end well. T |
|
|
|
Post by ES_97Sport on Feb 9, 2016 14:46:13 GMT -5
Thanks Edward I had even considered used wrecking yard ,in various states,engines with less than 100K miles claimed on them,but I couldnt be very confident in the real condition or mileage so I backed out. If you can find a good, reputable seller its not a bad option. The 3.5L we transplanted into my '97 had 55K on it and its been going strong for 4-5 years now. Its not as cheap as it sounds though. If you get one with 50-60K or 100ishK, you'll be doing all the timing belt stuff before you can even drop it in so don't forget to figure that into the cost. Yep, I was afraid of that. I know guys that have built crawlers there, swapped engines and been totally screwed 'cause they couldn't license them afterwards. We have some of the same regulations here, but our testing company is super lax. (for the time being) Edward |
|
jocks
Junior Member
Posts: 28 
|
Post by jocks on Feb 10, 2016 2:17:36 GMT -5
I always thought the cam profile and computers were different. Challengers having lower range torque and magnas having higher end torque. Read on the aussie forums of some guys doing short block swap from a Mitsu Magna. If i remember it was oil pickup, sump and intake. I've also heard Hyundai Santa Fe is a straight swap. Apparently its the same chassis and all. So maybe look into that also.
|
|
|
|
Post by ES_97Sport on Feb 18, 2016 18:28:18 GMT -5
I always thought the cam profile and computers were different. Challengers having lower range torque and magnas having higher end torque. Yep. Not anything new. It was the same in the '50s and '60s. The more weight you move, the more torque you need and the lower down you need it. There are documented issues with boss location(s). Both motor mounts as well as accessories. Doesn't do you much good if the mount bosses for something are missing or in the wrong location. That's why its much easier, as I said above, to just get a Sport engine. That way you know everything will bolt back in. I did a lot of surfing for a couple months on this and the info is still out there. It is definitely a bigger PITA to try to swap in some unrelated engine than its worth. Edward |
|
